If these were links to issues that could be reacted to, I’d totally do that.

This seems to be non-compliant to the GDPR:

Under Article 17 of the UK GDPR individuals have the right to have personal data erased. This is also known as the ‘right to be forgotten’.

You should be able to control your information because it’s yours afterall.

Defederation can go as far as including any instance that federates with Meta, even if they don’t do this directly.